Home / 12,906.37-19,346.49-8,746.81

Finding the Fourth Proportional to 12,906.37, 19,346.49 and 8,746.81

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Solution

The fourth proportional to 12,906.37, 19,346.49 and 8,746.81 is: 13,111.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.37 : 19,346.49 = 8,746.81 : x
  2. Step 2: Convert to fraction form
    12,906.37/19,346.49 = 8,746.81/x
  3. Step 3: Cross multiply
    12,906.37x = 19,346.49 × 8,746.81
  4. Step 4: Simplify right side
    12,906.37x = 169,220,072.20
  5. Step 5: Solve for x
    x = 169,220,072.20/12,906.37
  6. Step 6: Final answer
    x = 13,111.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.